The following steps should guide the write-up of the cost benefit analysis: 

Cost Benefit Analysis Steps 

 Present the Objective of the Project 

 Examination of the Relevant Alternatives 

 Select 3 Criteria and briefly define (Use the criteria in a decision matrix and a weighted score table) 

 Identification of Costs and Benefits – indirect vs. direct 

 Measurement of Costs and Benefits 

 Determine Net Benefits (Use a Generic Cost Benefit Calculation) 

Please see the CBA example to get an idea about how to layout your table. There should be a 1to 2pp write-up and interpretation of the results.